human leukocyte antigen(redirected from Hla-a antigens)
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human leukocyte antigen (HLA)The human MAJOR HISTOCOMPATIBILITY COMPLEX.
hu·man leu·ko·cyte an·ti·gen(HLA) (hyū'măn lū'kō-sīt an'ti-jen)
Any of several members of a system consisting of the gene products of at least four linked loci (A, B, C, and D) and a number of subloci on the sixth human chromosome that have been shown to have a strong influence on human allotransplantation, transfusions in refractory patients, and some disease associations.